Characterization and Comparison of Functionally Graded Al/Mg and Al/Al 7075 Metal Matrix Composites Manufactured by Die Casting
The functionally graded materials (FGMs) are introduced to remove the sharp interface that has been present in the traditional composite materials. This sharp interface is replaced with the help of a gradually changing interface to produce continuously varying spatial composition profile. In the present research, an attempt is made to characterize the FGMs made with the combinations of Al/Mg and Al/Al 7075. In the present paper, authors have made an attempt to produce the FGMs by the gravity casting process. Once the FGMs are made, they are analyzed for their microstructure and mechanical properties. The microscopic observations and microhardness tests revealed a gradually changing interface of metal B in metal A and resulted in a continuous gradient FGM.
KeywordsMetal matrix composite Functionally graded materials Aluminum 7075 Gravity casting Magnesium
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